我的脚本在Chrome中没问题,但在FireFox和IE中,结果是:NaN:NaN。 这是我的剧本:任何人都知道什么是错的?
$ db [time]的输出是:2013-10-07 14:28:35(时间戳数据库)
<script>
var end = new Date('<?=$db[time]?>');
var _second = 1000;
var _minute = _second * 60;
var _hour = _minute * 60;
var _day = _hour * 24;
var timer;
function showRemaining() {
var now = new Date();
var distance = end - now;
if (distance < 0) {
clearInterval(timer);
document.getElementById('countdown').innerHTML = 'ITS NOW TIME!</font><BR><BR>';
return;
}
var days = Math.floor(distance / _day);
var hours = Math.floor((distance % _day) / _hour);
var minutes = Math.floor((distance % _hour) / _minute);
var seconds = Math.floor((distance % _minute) / _second);
document.getElementById('countdown').innerHTML = '<font color="orange">' + minutes + ':';
document.getElementById('countdown').innerHTML += '<font color="orange">' + seconds + ' minutes</font>';
}
timer = setInterval(showRemaining, 1000);
</script>
答案 0 :(得分:2)
这是因为$db[time]
。
你在评论中说日期/时间的格式是2013-10-07 14:28:35
,这是MySQL的默认DATETIME输出,需要2013-10-07T14:28:35
。
Chrome支持2013-10-07 14:28:35
格式,但它不在Javascript规范中,因此并非所有其他浏览器都支持。
试试这个:
<? echo str_replace(' ', 'T', $db['time']); ?>
答案 1 :(得分:2)
javascript时间格式与php不同,因此firefox将显示NaN:NaN:NaN。你应该把时间改成如下:
PHP日期格式
$yourDate = date("M d, Y H:i:s", strtotime($db['time'])));
得到这样的时间
date = new date("<?=$yourDate?>").getTime();
答案 2 :(得分:0)
您可以自己解析日期字符串,而不是依赖现代浏览器和现代方法,类似下面的内容应该是跨浏览器友好的。倒计时以毫秒为单位,您可以根据需要对其进行格式化。
HTML
<div id="countdown"></div>
的Javascript
function isGregorianLeapYear(year) {
return year % 400 === 0 || year % 100 !== 0 && year % 4 === 0;
}
function daysInGregorianMonth(year, month) {
var days;
if (month == 2) {
days = 28;
if (isGregorianLeapYear(year)) {
days += 1;
}
} else {
days = 31 - ((month - 1) % 7 % 2);
}
return days;
}
function timeStampToDate(timeStamp) {
var dateObject,
dateTime,
date,
time,
value;
if (typeof timeStamp === "string") {
dateTime = timeStamp.split(" ");
if (dateTime.length === 2) {
date = dateTime[0].split("-");
if (date.length === 3) {
value = +date[0];
if (date[0].length === 4 && value >= -9999 && value <= 9999) {
value = +date[1];
if (date[1].length === 2 && value >= 1 && value <= 12) {
date[1] = value - 1;
value = +date[2];
if (date[2].length === 2 && value >= 1 && value <= daysInGregorianMonth(+date[0], date[1])) {
time = dateTime[1].split(":");
if (time.length === 3) {
value = +time[0];
if (time[0].length === 2 && value >= 0 && value <= 23) {
value = +time[1];
if (time[1].length === 2 && value >= 0 && value <= 59) {
value = +time[2];
if (time[2].length === 2 && value >= 0 && value <= 59) {
dateObject = new Date(Date.UTC.apply(Date, date.concat(time)));
}
}
}
}
}
}
}
}
}
}
if (typeof dateObject === "undefined") {
dateObject = new Date(NaN);
}
return dateObject;
}
function emptyNode(node) {
while (node.firstChild) {
node.removeChild(node.firstChild);
}
}
var countdown = document.getElementById("countdown"),
end = timeStampToDate("2013-10-07 16:57:00"),
intervalId;
end = end.getTime() + end.getTimezoneOffset() * 60000;
function showRemaining() {
var now = new Date().getTime();
if (isNaN(end) || isNaN(now)) {
clearInterval(intervalId);
emptyNode(countdown);
countdown.appendChild(document.createTextNode("Error"));
} else if (now < end) {
emptyNode(countdown);
countdown.appendChild(document.createTextNode(end - now));
} else {
clearInterval(intervalId);
emptyNode(countdown);
countdown.appendChild(document.createTextNode("ITS NOW TIME!"));
}
}
intervalId = setInterval(showRemaining, 1000);